Katy Perry takes ‘Last Friday Night’ to the top of Billboard Hot 100

It”s a record-setting week for Katy Perry, as we previously reported, as “Last Friday Night (T.G.I.F.)” reaches No. 1 on the Billboard Hot 100. The tune is the fifth from Perry”s “Teenage Dream” to reach the summit, which ties her with Michael Jackson for the most No. 1s from one album: The King of Pop spawned five No. 1s from “Bad,” according to Billboard.